code: def __init__(self, ctx, base_axis=1):
      super(EmbedFilterGrad, self).__init__(ctx)
      self._linear = _F.Embed(ctx)
  
file_path: nnabla/python/src/nnabla/backward_function/embed.py
imports: import nnabla
  import nnabla.function
  import nnabla.functions
  from .backward_function import LinearFilterGrad
label_desc: Use image node_id 1 to create a new EmbedFilterGrad object from inherited base classes: LinearFilterGrad with example: obj = EmbedFilterGrad(ctx, base_axis)